ADT7460ARQZ-REEL

Overview

The ADT7460ARQZ-REEL is a dBCOOL remote thermal controller and fan controller manufactured by onsemi. It monitors up to two remote diode sensors plus an internal temperature sensor, measuring temperatures with ±1.5°C accuracy at 25°C. The device controls up to four fans via three PWM outputs and measures fan speeds using TACH inputs. It operates on a 3.0 V to 5.5 V supply and communicates via SMBus 2.0. Key features include dynamic TMIN control for acoustic optimization and automatic fan speed adjustment based on thermal data.

Feature Summary

• Integrates one on-chip and two remote temperature sensors for comprehensive thermal monitoring
• Controls up to four fan speeds using PWM outputs with automatic speed adjustment based on measured temperature
• Features dynamic TMIN control mode to intelligently optimize system acoustics and cooling performance
• Provides thermal protection via bidirectional THERM output and monitors Intel Pentium 4 processor thermal circuits

Applications

• Low acoustic noise PCs
• Networking equipment
• Telecommunications equipment

Procurement Notes

Verify the manufacturer designation as onsemi, noting the original Analog Devices design. Confirm the package type matches the QSOP-16 specification. Ensure the revision level aligns with Rev. C documentation. Check for any specific ordering suffix requirements related to tape and reel packaging if applicable to your assembly process.

Selection Notes

Select this component for systems requiring active cooling with minimal acoustic noise. It is suitable for applications needing simultaneous monitoring of multiple thermal zones and precise fan speed regulation. Consider its SMBus interface compatibility with existing system management controllers. Evaluate the need for dynamic TMIN control to meet specific acoustic targets.

Part Context

This part belongs to the ADT7460 family of thermal controllers. It is designed for noise-sensitive environments where intelligent thermal management is critical. The device combines temperature sensing with fan control capabilities in a single integrated circuit, simplifying system design for PC and server platforms.

Replacement Considerations

Check for ADT7460 variants with different package options or addressing configurations. Verify pin-to-pin compatibility if substituting with other thermal controllers from the same family.